Window sash extrusion



FIG. 1 is a top front isometric view of a window sash extrusion showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view thereof.

The window sash extrusion is shown with a symbolic break in its length. The appearance of any portion of the window sash extrusion between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a window sash extrusion, as shown and described. 